Land Rover Battery Key Replacement / Range Rover Key Battery Post category:Discovery Sport / Land Rover / LR3 / DIscovery 3 This video shows how to replace the battery in a Land Rover Key Fob. Replacing the battery requires no tools and can be done in under a minute. The battery is model 2032 and is very common. you do not need any tools to change the key battery. You Might Also Like LR3 Water Pump Replacement December 17, 2019 Land Rover Battery / HDC Fault System Not Available October 25, 2019 Discovery Sport Air Filter Change October 25, 2019